FIELD DEFINITION AND SCOPE

Meeting or conference name used as a subject added entry.

Subject added entries are assigned to a community information record to provide access
according to established subject cataloging principles and guidelines. Field 611 may be
used by any institution assigning subject headings based on the lists and authority
files identified in the second indicator position or in subfield $2 (Source
of heading or term).

GUIDELINES FOR APPLYING CONTENT DESIGNATORS

Description of the first indicator position and all subfield codes, as well as input
conventions for the 611 field are given in the
X11 Meeting Names-General
Information section. Because the second indicator is different for various fields,
it is not described in the general information section, but is described below.

■ INDICATORS

Second Indicator - Thesaurus

Name and/or subject heading system or thesaurus used in constructing the subject
heading.

0 - Library of Congress Subject Headings

Subject added entry conforms to and is appropriate for use in the Library
of Congress Subject Headings (LCSH) and the Name authority files.
LCSH is maintained by the Library of Congress. Conforms to LCSH is defined as:

headings (or headings and subdivisions) found in the LC authority files
(including name authorities), or in the latest edition of LCSH,
including the latest microfiche, printed version, CD-ROM, and supplements;

headings constructed following AACR 2;

headings found in the LC authority files, the latest edition of
LCSH, or constructed following AACR 2 to which is added a
free-floating or regular subdivision according to the rules stated in the
Subject Cataloging Manual: Subject Headings, particularly
subdivisions listed in the pattern lists, and geographic subdivisions
formulated and applied according to the rules in the manual

1 - LC subject headings for children's literature

Subject added entry conforms to the "AC Subject Headings" section of
Library of Congress Subject Headings that is maintained by the
Library of Congress and is appropriate for use in the LC Annotated Card
Program.

2 - Medical Subject Headings

Subject added entry conforms to and is appropriate for use in the National
Library of Medicine authority files.

3 - National Agricultural Library subject authority file

Subject added entry conforms to and is appropriate for use in the U.S. National
Agricultural Library subject authority file.

4 - Source not specified

Subject added entry conforms to a controlled list but the source cannot be
specified by one of the subject heading system/thesauri covered by second
indicator values 0-3, 5-6 or by a code for a specific subject heading list in
subfield $2. Field 653 (Index Term-Uncontrolled) is used to record terms that are not
derived from controlled subject heading lists.

5 - Canadian Subject Headings

Subject added entry conforms to and is appropriate for use in the Canadian
Subject Headings and the NLC authority files that are maintained by the
Library and Archives Canada.

6 - Répertoire de vedettes-matière

Subject added entry conforms to and is appropriate for use in the
Répertoire de vedettes-matière that is maintained by the
Bibliothèque de l'Université Laval.

7 - Source specified in subfield $2

Subject added entry conforms to a set of subject heading system/thesaurus
building rules other than that specified by one of the other defined values and
for which identifying codes are given in subfield $2. The codes to
be used are given in Subject Heading
and Term Source Codes.